– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Fri 31 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Fri 31 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 31 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 12mm), heaviest on Sat afternoon. Warm (max 25°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | | | | | | | | | |
clear | clear | light rain | mod. rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 5850 | 600 | 600 | 1850 | 950 | 800 | 6900 | ||||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | 0.5 | 6 | 0.6 | 1.6 | 3 | 0.1 | — | — | — | — | — | — | — | — | — |
max °C | 25 | 21 | 15 | 14 | 12 | 12 | 14 | 13 | 19 | 22 | 19 | 23 | 26 | 22 | 24 | 27 | 23 |
min °C | 25 | 14 | 14 | 12 | 10 | 11 | 13 | 10 | 14 | 22 | 16 | 20 | 25 | 18 | 21 | 27 | 18 |
chill °C | 25 | 14 | 13 | 12 | 10 | 11 | 13 | 10 | 14 | 22 | 16 | 20 | 25 | 18 | 21 | 27 | 18 |
Freezing level m | 4350 | 4000 | 3050 | 2500 | 2300 | 2250 | 2450 | 3000 | 3400 | 3500 | 3550 | 3600 | 4000 | 4250 | 4300 | 4450 | 4500 |
 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — |
 | — | 8:46 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 12mm), heaviest on Sat afternoon. Warm (max 25°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 27°C on Wed afternoon, min 16°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
SHIP5659 | |||||
 | |||||
SHIP2535 | |||||
SHIP9101 | |||||
SHIP2249 | |||||
SHIP5283 | |||||
SHIP7672 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.